Paris: Jombert, 1765. Contemporary calf. Two parts: Manuscript and Complete printed text for Ozanam's Trigonometrie. 8vo. (18.4 X 11.4cm). Contemporary mottled calf; raised bands; gilt floral designs in panels; leather label with gilt title; breaks along spine for both boards, affecting lower cord of rear board; corners rubbed with minor loss; covers with gilt filigree border; all edges of text block gilt. Book housed in quarter leather clamshell box. Collation: Manuscript- 220pp. + 3 folded plates and 1 tipped in note in printed text at p. 68. Manuscript note on verso of pl. 4; Text- xvi, 128, [384] pp. + 6 copper engraved plates. The unlabeled pages contain the Tables des sinus (182pp) and Tables des lograrithmes (102 pp.) This is a unique and rare 18th century complementary manuscript bound in front of printed text for Ozanam's treatise on rectilinear and spherical trigonometry with accompanying tables for sines, tangents and secants. The manuscript contains detailed information arithmetic, trigonometry and geometry with theorems, corollaries and problems with reference to Euclid, Archimedes and Metius. There is also tables that can be used with sun dials. Information for construction of sun dial is also provided. The mathematic sections of the manuscript provide the reader with detailed information for measuring angles and surfaces in great detail. These are complemented by numerous drawings, many colored, and tables. Good +. Item #0000545

Ozanam was a French mathematician whose trigonometric and logarithmic tables first published in 1670 were more accurate than any previously published. The later edition here attests to the popularity and value of Ozanam's work.